<template>
<div class="xtx-numbox">
  <div class="label">数量</div>
  <div class="numbox">
      <a @click="changeNum(-1)" href="javascript:">-</a>
      <input type="text" readonly :value="modelValue">
      <a @click="changeNum(1)" href="javascript:">+</a>
  </div>
</div>
</template>

<script setup>
import { useVModel } from '@vueuse/core'

const props = defineProps({
    label: {
        type: String
    },
    modelValue: {
        type: Number,
        default: 1
    },
    min: {
        type: Number,
        default: 1
    },
    max: {
        type: Number,
        default: 100
    }
})

const emit = defineEmits(['change'])

const num = useVModel(props,'modelValue', emit)
const changeNum = (value) => {
    const newValue = num.value +value
    if (newValue < props.min) return
    if (newValue > props.max) return
    num.value = newValue
    emit('change',newValue)
}
</script>

<style scoped lang="less">
.xtx-numbox {
  display: flex;
  align-items: center;
  .label {
    width: 60px;
    color: #999;
    padding-left: 10px;
  }
  .numbox {
    display: flex;
    width: 120px;
    height: 30px;
    border: 1px solid #e4e4e4;
    > a {
      width: 29px;
      line-height: 28px;
      text-align: center;
      background-color: #f8f8f8;
      font-size: 16px;
      color: #666;
      &:first-of-type {
        border-right: 1px solid #e4e4e4;
      }
      &:last-of-type {
        border-left: 1px solid #e4e4e4;
      }
    }
    > input {
      width: 60px;
      padding: 0 5px;
      text-align: center;
      color: #666;
    }
  }
}
</style>
